Free of lead, cadmium, mercury, chromium and nickel, PBB and PBDE, which are harmful to our health. Ocean liquid chalk pens have got RoHS Envrionmental Certificate by SGS.
Total cost is very competitive
100ml of ocean board marker refill ink (1 bottle) can be written above 10000 meters on blackboard (ecogreen chalkboard) or 5-6 weeks for one classroom. With no dust, teachers and students have no healthy risk of dust poison which is a great cost reduction for both individual or society. Additionally it will also reduce maintenance cost as there's no dust pollution. Total cost of Ocean liquid chalk pens are more than 50% competitive than old products.
High Technology,Strong marketing
Ocean board marker refill ink is a kind of polymer liquid with one international patent and 5 China patents. Its application and environmental performance is at very high level in the world. China-made provides us with very strong marketing competion ability.
Broad applicability
Ocean liquid chalk pens can be used on many different ecogreen chalkboards or black boards and white boards under a broad temperature range. Usually users do not need to reconstruct their boards. Once needed, Ocean can provide our solution for reference.
Handwriting clear
The polymer ink can be fluently writing and cover the board as a polymer film. Very good visual appearance.
Easily using, easily cleaning and fast drying
Handwriting with Ocean liquid chalk pens can dry very quickly in a few seconds, and it's very easy to be wiped off too.
Different colors
Ocean common using refill ink is in four colors, white, blue, yellow and red. It's a perfect replacement for chalk.
Large capacity
Can be filled in 10ml of ink, and can be written above 1000 meters long.
Environmental friendly and cost saving
All liquid chalk pens are ink-refillable, That avoids waste of empty liquid chalk pens and environmental burden. The chalk markrer nibs are polyester nibs, which can be reversible separately instead of changing an liquid chalk pen.
